Still life with Melon and Pears, Luis Egidio Meléndez, oil on canvas, roughly 25 x 33 inches (63 x 85 cm). Link is to zoomable image on Google Art Project; downloadable version on Wikimedia Commons, original is in the Museum of Fine Arts Boston..
A wonderfully tactile and sensual still life by the 18th century Spanish master. His command of texture, use of naturalistic color, and remarkable control of value allow us to mentally feel the objects his paintings.